共57頁(yè)，字?jǐn)?shù)總計(jì)：19707
循環(huán)水處理計(jì)算機(jī)監(jiān)控系統(tǒng)設(shè)計(jì)
摘 要
在石化企業(yè)生產(chǎn)過(guò)程中，工業(yè)循環(huán)水系統(tǒng)占有重要的地位。良好的水質(zhì)對(duì)延長(zhǎng)生

產(chǎn)設(shè)備的使用壽命，降低能耗，提高經(jīng)濟(jì)效益具有重要意義。
對(duì)于工業(yè)循環(huán)水的處理主要依靠投加藥劑來(lái)完成。如何使加藥方式自動(dòng)化程度更

高并使藥劑能最大限度地發(fā)揮它們的效果同時(shí)還能節(jié)省藥劑。這是循環(huán)水處理所

面臨的主要問(wèn)題。利用先進(jìn)的計(jì)算機(jī)控制技術(shù)和水處理技術(shù)構(gòu)成自動(dòng)加藥控制系

統(tǒng)是解決這一問(wèn)題的有效方法。
針對(duì)工業(yè)循環(huán)水處理問(wèn)題，開發(fā)了循環(huán)水自動(dòng)加藥計(jì)算機(jī)監(jiān)控系統(tǒng)。為了保證系

統(tǒng)的可靠性和滿足工業(yè)現(xiàn)場(chǎng)的實(shí)際要求，本系統(tǒng)采用上、下兩級(jí)控制系統(tǒng)。通過(guò)

插在計(jì)算機(jī)槽中的多點(diǎn)接口卡，實(shí)現(xiàn)計(jì)算機(jī)與PLC之間的上下級(jí)數(shù)據(jù)通訊。在系

統(tǒng)中，上位機(jī)主要承擔(dān)監(jiān)測(cè)和管理任務(wù)。下位機(jī)用于實(shí)時(shí)數(shù)據(jù)采集和控制，通過(guò)

對(duì)兩臺(tái)計(jì)量泵的控制來(lái)實(shí)現(xiàn)藥劑的自動(dòng)投加工作。系統(tǒng)具有安全可靠、功能完善

、性能價(jià)格比高等優(yōu)點(diǎn)，大大提高了工業(yè)循環(huán)水處理的自動(dòng)化水平并取得了較好

的經(jīng)濟(jì)效益。
關(guān)鍵詞：循環(huán)水處理；監(jiān)控系統(tǒng)；PLC





Configuration software-based computer to monitor the cycle of water

treatment system design
Abstract
Petrochemical enterprises in the production process, industrial

circulating water system played an important role. Good water quality

for the extension of the life of production equipment and reduce

energy consumption, the importance of improving economic efficiency.
Recycled water for industry mainly depends on the processing to

complete the pharmaceutical dosage. Dosing way how to make a higher

degree of automation and pharmacy to maximize their effectiveness

while saving pharmacy. This is the cycle of water facing the major

problem. The use of advanced computer control technology and water

treatment technologies Dosing control system automatically solve this

problem is an effective way.
The issue of recycling water for industry, the development of recycled

water Dosing automatic computer monitoring system. In order to ensure

system reliability and meet the practical requirements of the

industrial scene, the system uses the upper and lower level control

system. Slot in the computer through the interpolation of multi-point

interface card, computer and PLC to achieve higher and lower levels

between the data communication. In the system, the PC is mainly

responsible for monitoring and management tasks. Under-bit machine for

real-time data acquisition and control, through control of the two

metering pump to achieve the pharmaceutical dosage of the work

automatically. System is safe, reliable, fully functional, high cost

performance has greatly improve, the treatment of industrial

automation level of the cycle and achieve a better economic

efficiency.
Key words: Circulating Water Treating; Monitoring system; PLC




目 錄
第1章 引言 1
1.1 概述 1
1.2 國(guó)內(nèi)外循環(huán)水處理概況 2
1.3 循環(huán)水處理主要面對(duì)的問(wèn)題 3
1.3.1 結(jié)垢問(wèn)題 3
1.3.2 腐蝕問(wèn)題 4
1.3.3 生物粘泥問(wèn)題 4
1.4 循環(huán)水處理相關(guān)問(wèn)題概述 4
1.4.1 循環(huán)水處理方法 4
1.4.2 加藥控制方法 4
1.5 我國(guó)循環(huán)水處理監(jiān)控系統(tǒng)存在的差距和今后的發(fā)展方向 5
1.6 循環(huán)水處理計(jì)算機(jī)監(jiān)控系統(tǒng)的作用 6
第2章 主要監(jiān)控系統(tǒng)概述 7
2.1 系統(tǒng)概述 7
2.2 上位機(jī)監(jiān)控軟件的選擇 7
2.3 下位機(jī)系統(tǒng)的集成 8
2.3.1 PLC簡(jiǎn)介 8
2.3.2 智能儀器儀表簡(jiǎn)介 9
2.4 系統(tǒng)構(gòu)成與工作原理 9
第3章 組態(tài)軟件與PLC簡(jiǎn)介 11
3.1 組態(tài)軟件與PLC的發(fā)展歷程及未來(lái)走向 11
3.1.1 組態(tài)軟件的發(fā)展歷程 11
3.1.2 PLC的發(fā)展歷程 13
3.2 組態(tài)軟件的系統(tǒng)構(gòu)成 14
3.2.1 組態(tài)軟件的結(jié)構(gòu)劃分 14
3.2.2 力控®2.0的體系結(jié)構(gòu) 18
3.3 組態(tài)軟件的特點(diǎn)與應(yīng)用領(lǐng)域 20
3.3.1 組態(tài)軟件的特點(diǎn) 20
3.3.2 組態(tài)軟件的應(yīng)用領(lǐng)域 20
3.4 國(guó)內(nèi)外組態(tài)軟件 20
3.4.1國(guó)內(nèi)外組態(tài)軟件種類 20
3.4.2 組態(tài)王的性能特點(diǎn) 21
3.4.3 技術(shù)參數(shù) 22
3.5 PLC的構(gòu)成 22
3.6 PLC的特點(diǎn)與應(yīng)用領(lǐng)域 23
3.6.1 PLC的特點(diǎn) 23
3.6.2 PLC的應(yīng)用領(lǐng)域 25
3.7 PLC的主要性能指標(biāo) 26
3.8 S7-300產(chǎn)品簡(jiǎn)介 28
第4章 循環(huán)水處理計(jì)算機(jī)監(jiān)控系統(tǒng)具體設(shè)計(jì) 29
4.1 CPU型號(hào)的選擇 29
4.2 PLC機(jī)型的選擇 29
4.3 系統(tǒng)配置 31
4.4 系統(tǒng)總體方案的確定 32
4.5 系統(tǒng)軟件的設(shè)計(jì) 36
4.5.1 控制方案及算法 37
4.5.2計(jì)算機(jī)監(jiān)測(cè)系統(tǒng)簡(jiǎn)介 38
第5章 結(jié)論 55
參考文獻(xiàn) 56
謝 辭 57